Engineered Alpha-Amylase Variants for Detergent Stability
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Solution Overview
Problem
Current amylase enzymes used in detergents lack stability and performance under elevated temperatures and denaturing conditions, necessitating the development of enzymes with improved stability and performance for effective starch stain removal.
Innovation Solution
Genetically engineered alpha-amylase variants with specific amino acid alterations at defined positions, resulting in enhanced stability and activity, are developed for use in detergent compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If genetically engineered alpha-amylase variants with specific amino acid alterations are developed, then stability and activity under elevated temperatures and denaturing conditions are improved, but the complexity of enzyme production and characterization increases
Solution Approach 1:
The patent applies parameter changes by systematically modifying amino acid sequences at specific positions (1-482) to alter enzyme properties. Multiple variants are created with different amino acid substitutions, deletions, or insertions to optimize stability and activity under various conditions including elevated temperatures and denaturing environments.
Solution Approach 2:
The invention focuses on local quality changes by targeting specific amino acid positions (1-482) for modification rather than random mutations. This approach allows precise control over enzyme properties by making localized changes to the protein structure at critical positions that affect thermal stability and resistance to denaturation.
2Productivity
If amylase enzymes are used in detergent applications for starch stain removal, then cleaning efficiency is improved, but the enzymes require stability at elevated temperatures and denaturing conditions which current enzymes lack
Solution Approach 1:
The patent modifies enzyme parameters through amino acid substitutions at positions 1-482 to enhance thermostability and resistance to denaturation. These parameter changes enable the enzyme to maintain catalytic activity under the harsh conditions of detergent applications including high temperatures and chemical denaturers.
Solution Approach 2:
The invention employs preliminary action by pre-engineering the enzyme variants with improved stability properties before detergent formulation. The amino acid modifications are made in advance to ensure the enzyme can withstand subsequent exposure to elevated temperatures and denaturing conditions during storage and use in detergent products.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The engineered alpha-amylase variants exhibit improved stability and activity, leading to enhanced cleaning performance and extended half-life, even under challenging conditions, thus addressing the limitations of existing amylase enzymes.
Implementation Method 1
Amylases are enzymes capable of hydrolyzing starch
Data Source
AI summary
In the present invention new amylase enzymes are provided. More specifically, genetically engineered amylase enzymes, compositions comprising the enzymes, and methods of making and using the enzymes or compositions comprising the enzymes are provided.